I’m learning how to write captcha on the site, I don’t want to use ready-made solutions, I want to learn it myself. I think you understand me. Found a tutorial on creating a captcha. Can you please tell me if this captcha can be used on serious projects? That is, will it protect against spam?
Tutorial at this link:
Answer 1, authority 100%
It depends what you mean by spam. If robots use a form protected by this captcha, then don’t rely on it too much. It is better to protect yourself from robots with additional fields hidden from users via CSS
Captcha protects perfectly only when no one knows about it, as soon as it becomes popular and becomes popular, bots write for it.
More or less (IMHO) working method is a unique question-answer, everything else is crap.
Captcha is a dead end approach. Need something new! 🙂
PS: on the topic, the captcha is elementary, it breaks without any problems using standard tools 🙂